REAR VIEW MONITOR SYSTEM Image from Camera for Rear View Monitor is Abnormal

DESCRIPTION


WIRING DIAGRAM

A005EH7E07

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for Navigation Receiver Type A
      for Radio and Display Type B

    B

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)


    1. Disconnect the L172 navigation receiver assembly connector.

    2. Disconnect the V14 rear television camera assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L172-11 (CA+) - V14-6 (CB+) Always Below 1 Ω
      L172-12 (V+) - V14-3 (CV+) Always Below 1 Ω
      L172-24 (V-) - V14-2 (CV-) Always Below 1 Ω
      L172-23 (CGND) - V14-5 (CGND) Always Below 1 Ω
      L172-11 (CA+) - Body ground Always 10 kΩ or higher
      L172-12 (V+) - Body ground Always 10 kΩ or higher
      L172-24 (V-) - Body ground Always 10 kΩ or higher
      L172-23 (CGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT NAVIGATION RECEIVER ASSEMBLY


    1. Reconnect the L172 navigation receiver assembly connector.

    2. A005BZFE01
      Text in Illustration
      *a

      Component with harness connected

      (Navigation Receiver Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L172-23 (CGND) - Body ground Always Below 1 Ω

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      L172-11 (CA+) - L172-23 (CGND) Power switch on (ACC) 5.5 to 7.05 V

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  4. INSPECT REAR TELEVISION CAMERA ASSEMBLY


    1. Reconnect the V14 rear television camera assembly connector.

    2. A005E0XE01

      Using an oscilloscope, check the waveform of the rear television camera assembly.

      Text in Illustration
      *a

      Component with harness connected

      (Navigation Receiver Assembly)
      A005CEOE01

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the navigation receiver assembly with the connector connected.

      OK
      Waveform is similar to that shown in the illustration.
      Item Content
      Measurement terminal L172-12 (V+) - L171-7 (GND1)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Power switch on (IG), reverse (R) selected

      Tech Tips


      • The video waveform changes according to the image sent by the rear television camera assembly.

      • The video waveform is constantly output when the power switch is on (ACC).

      Text in Illustration
      *a Waveform 1 (camera lens is not covered, displaying an image)
      *b Waveform 2 (camera lens is covered, blacking out the screen)
      *c Synchronization Signal
      *d Video Waveform

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

  5. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)


    1. Disconnect the L168 radio and display receiver assembly connector.

    2. Disconnect the V14 rear television camera assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L168-11 (CA+) - V14-6 (CB+) Always Below 1 Ω
      L168-12 (V+) - V14-3 (CV+) Always Below 1 Ω
      L168-24 (V-) - V14-2 (CV-) Always Below 1 Ω
      L168-23 (CGND) - V14-5 (CGND) Always Below 1 Ω
      L168-11 (CA+) - Body ground Always 10 kΩ or higher
      L168-12 (V+) - Body ground Always 10 kΩ or higher
      L168-24 (V-) - Body ground Always 10 kΩ or higher
      L168-23 (CGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. Reconnect the L168 radio and display receiver assembly connector.

    2. A005DGBE01
      Text in Illustration
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L168-23 (CGND) - Body ground Always Below 1 Ω

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      L168-11 (CA+) - L168-23 (CGND) Power switch on (ACC) 5.5 to 7.05 V

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  7. INSPECT REAR TELEVISION CAMERA ASSEMBLY


    1. Reconnect the V14 rear television camera assembly connector.

    2. A005C0OE01

      Using an oscilloscope, check the waveform of the rear television camera assembly.

      Text in Illustration
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)
      A005CEOE01

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the radio and display receiver assembly with the connector connected.

      OK
      Waveform is similar to that shown in the illustration.
      Item Content
      Measurement terminal L168-12 (V+) - L167-7 (GND1)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Power switch on (IG), reverse (R) selected

      Tech Tips


      • The video waveform changes according to the image sent by the rear television camera assembly.

      • The video waveform is constantly output when the power switch is on (ACC).

      Text in Illustration
      *a Waveform 1 (camera lens is not covered, displaying an image)
      *b Waveform 2 (camera lens is covered, blacking out the screen)
      *c Synchronization Signal
      *d Video Waveform

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here